The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2009
Filed:
Nov. 27, 2006
Toshiaki Ino, Kyoto, JP;
Toshiaki Ino, Kyoto, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
There is provided a charging apparatus having high durability, in which no rusts etc. are generated, and by which a potential of a photoreceptor drum being charged can be controlled stably within an appropriate range for a long period of time owing to hardly impaired controllability of the potential of the photoreceptor drum being charged even with a some amount of contaminants such as toner that may be deposited on, and which is inexpensive as well. A charging apparatus includes a needle electrode, a holding member, two cleaner members, a support member, a moving member, a shield case, and a plate-like grid. On the surface of the needle electrode is formed a nickel layer containing boron.